[Issue 8 drafts 0001789]: if command name contains slash, it cannot be arg0 for execl()
A NOTE has been added to this issue. == https://austingroupbugs.net/view.php?id=1789 == Reported By:Mark_Galeck Assigned To: == Project:Issue 8 drafts Issue ID: 1789 Category: Shell and Utilities Type: Error Severity: Objection Priority: normal Status: Resolved Name: Mark Galeck Organization: User Reference: Section:Volume 2, Chapter 3 Page Number:865, 2487 Line Number:80936, 29495 Final Accepted Text:see https://austingroupbugs.net/view.php?id=1789#c6621 Resolution: Accepted As Marked Fixed in Version: == Date Submitted: 2023-11-22 02:24 UTC Last Modified: 2024-01-22 16:15 UTC == Summary:if command name contains slash, it cannot be arg0 for execl() == Relationships ID Summary -- related to 0001645 execvp( ) requirements on arg0 are too ... == -- (0006633) nick (manager) - 2024-01-22 16:15 https://austingroupbugs.net/view.php?id=1789#c6633 -- Bugnote:6621 has been updated as suggested by https://austingroupbugs.net/view.php?id=1789#c6631 Issue History Date ModifiedUsername FieldChange == 2023-11-22 02:24 Mark_GaleckNew Issue 2023-11-22 02:24 Mark_GaleckName => Mark Galeck 2023-11-22 02:24 Mark_GaleckSection => Volume 2, Chapter 3 2023-11-22 02:24 Mark_GaleckPage Number => 865, 2487 2023-11-22 02:24 Mark_GaleckLine Number => 80936, 29495 2023-11-22 06:20 larryv Note Added: 0006579 2023-11-22 07:18 Don Cragun Note Added: 0006580 2023-11-22 07:19 Don Cragun Project 1003.1(2016/18)/Issue7+TC2 => Issue 8 drafts 2023-11-22 07:21 Don Cragun version => Draft 3 2023-11-22 09:42 Guy Harris Note Added: 0006581 2023-11-22 09:57 Guy Harris Note Added: 0006582 2023-12-11 14:58 geoffclare Note Added: 0006596 2024-01-15 16:40 nick Relationship added related to 0001645 2024-01-15 17:28 nick Note Added: 0006621 2024-01-15 17:29 nick Final Accepted Text => see https://austingroupbugs.net/view.php?id=1789#c6621 2024-01-15 17:29 nick Status New => Resolved 2024-01-15 17:29 nick Resolution Open => Accepted As Marked 2024-01-15 17:30 nick Tag Attached: tc1-2024 2024-01-15 17:31 nick Note Edited: 0006621 2024-01-17 17:43 gbrandenrobinsonNote Added: 0006626 2024-01-18 16:08 nick Note Edited: 0006621 2024-01-18 16:08 nick Note Added: 0006627 2024-01-18 16:09 nick Note Added: 0006628 2024-01-18 16:10 nick Note Deleted: 0006628 2024-01-18 16:44 eblake Note Edited: 0006621 2024-01-19 19:31 larryv Note Added: 0006631 2024-01-22 16:14 nick Note Edited: 0006621 2024-01-22 16:15 nick Note Added: 0006633 ==
[Issue 8 drafts 0001789]: if command name contains slash, it cannot be arg0 for execl()
A NOTE has been added to this issue. == https://austingroupbugs.net/view.php?id=1789 == Reported By:Mark_Galeck Assigned To: == Project:Issue 8 drafts Issue ID: 1789 Category: Shell and Utilities Type: Error Severity: Objection Priority: normal Status: Resolved Name: Mark Galeck Organization: User Reference: Section:Volume 2, Chapter 3 Page Number:865, 2487 Line Number:80936, 29495 Final Accepted Text:see https://austingroupbugs.net/view.php?id=1789#c6621 Resolution: Accepted As Marked Fixed in Version: == Date Submitted: 2023-11-22 02:24 UTC Last Modified: 2024-01-19 19:31 UTC == Summary:if command name contains slash, it cannot be arg0 for execl() == Relationships ID Summary -- related to 0001645 execvp( ) requirements on arg0 are too ... == -- (0006631) larryv (reporter) - 2024-01-19 19:31 https://austingroupbugs.net/view.php?id=1789#c6631 -- Re: https://austingroupbugs.net/view.php?id=1789#c6621:The string in arg0 or argv[0] is typically the basename of the path of the file being executed. However, there is no requirement in this standard that this is so, and the program executed will see this string in the first element of the argv[] array passed to its main() function, and may alter its functionality based on this.Minor copyediting nit, but the first clause of the second sentence seems more closely related to the first sentence than to the rest of the second sentence. Suggestion:The string in arg0 or argv[0] is typically the basename of the path of the file being executed, but this standard does not require it to be so. The program executed will see this string in the first element of the argv[] array passed to its main() function and may alter its functionality based on it. Issue History Date ModifiedUsername FieldChange == 2023-11-22 02:24 Mark_GaleckNew Issue 2023-11-22 02:24 Mark_GaleckName => Mark Galeck 2023-11-22 02:24 Mark_GaleckSection => Volume 2, Chapter 3 2023-11-22 02:24 Mark_GaleckPage Number => 865, 2487 2023-11-22 02:24 Mark_GaleckLine Number => 80936, 29495 2023-11-22 06:20 larryv Note Added: 0006579 2023-11-22 07:18 Don Cragun Note Added: 0006580 2023-11-22 07:19 Don Cragun Project 1003.1(2016/18)/Issue7+TC2 => Issue 8 drafts 2023-11-22 07:21 Don Cragun version => Draft 3 2023-11-22 09:42 Guy Harris Note Added: 0006581 2023-11-22 09:57 Guy Harris Note Added: 0006582 2023-12-11 14:58 geoffclare Note Added: 0006596 2024-01-15 16:40 nick Relationship added related to 0001645 2024-01-15 17:28 nick Note Added: 0006621 2024-01-15 17:29 nick Final Accepted Text => see https://austingroupbugs.net/view.php?id=1789#c6621 2024-01-15 17:29 nick Status New => Resolved 2024-01-15 17:29 nick Resolution Open => Accepted As Marked 2024-01-15 17:30 nick Tag Attached: tc1-2024 2024-01-15 17:31 nick Note Edited: 0006621 2024-01-17 17:43 gbrandenrobinsonNote Added: 0006626 2024-01-18 16:08 nick Note Edited: 0006621 2024-01-18 16:08 nick Note Added: 0006627 2024-01-18 16:09 nick Note Added: 0006628 2024-01-18 16:10 nick Note Deleted: 0006628 2024-01-18 16:44 eblake Note Edited: 0006621 2024-01-19 19:31 larryv
[Issue 8 drafts 0001789]: if command name contains slash, it cannot be arg0 for execl()
A NOTE has been added to this issue. == https://austingroupbugs.net/view.php?id=1789 == Reported By:Mark_Galeck Assigned To: == Project:Issue 8 drafts Issue ID: 1789 Category: Shell and Utilities Type: Error Severity: Objection Priority: normal Status: Resolved Name: Mark Galeck Organization: User Reference: Section:Volume 2, Chapter 3 Page Number:865, 2487 Line Number:80936, 29495 Final Accepted Text:see https://austingroupbugs.net/view.php?id=1789#c6621 Resolution: Accepted As Marked Fixed in Version: == Date Submitted: 2023-11-22 02:24 UTC Last Modified: 2024-01-18 16:09 UTC == Summary:if command name contains slash, it cannot be arg0 for execl() == Relationships ID Summary -- related to 0001645 execvp( ) requirements on arg0 are too ... == -- (0006628) nick (manager) - 2024-01-18 16:09 https://austingroupbugs.net/view.php?id=1789#c6628 -- https://austingroupbugs.net/view.php?id=1789#c6621 has been updated to break the run-on sentence as suggested. Issue History Date ModifiedUsername FieldChange == 2023-11-22 02:24 Mark_GaleckNew Issue 2023-11-22 02:24 Mark_GaleckName => Mark Galeck 2023-11-22 02:24 Mark_GaleckSection => Volume 2, Chapter 3 2023-11-22 02:24 Mark_GaleckPage Number => 865, 2487 2023-11-22 02:24 Mark_GaleckLine Number => 80936, 29495 2023-11-22 06:20 larryv Note Added: 0006579 2023-11-22 07:18 Don Cragun Note Added: 0006580 2023-11-22 07:19 Don Cragun Project 1003.1(2016/18)/Issue7+TC2 => Issue 8 drafts 2023-11-22 07:21 Don Cragun version => Draft 3 2023-11-22 09:42 Guy Harris Note Added: 0006581 2023-11-22 09:57 Guy Harris Note Added: 0006582 2023-12-11 14:58 geoffclare Note Added: 0006596 2024-01-15 16:40 nick Relationship added related to 0001645 2024-01-15 17:28 nick Note Added: 0006621 2024-01-15 17:29 nick Final Accepted Text => see https://austingroupbugs.net/view.php?id=1789#c6621 2024-01-15 17:29 nick Status New => Resolved 2024-01-15 17:29 nick Resolution Open => Accepted As Marked 2024-01-15 17:30 nick Tag Attached: tc1-2024 2024-01-15 17:31 nick Note Edited: 0006621 2024-01-17 17:43 gbrandenrobinsonNote Added: 0006626 2024-01-18 16:08 nick Note Edited: 0006621 2024-01-18 16:08 nick Note Added: 0006627 2024-01-18 16:09 nick Note Added: 0006628 ==
[Issue 8 drafts 0001789]: if command name contains slash, it cannot be arg0 for execl()
A NOTE has been added to this issue. == https://austingroupbugs.net/view.php?id=1789 == Reported By:Mark_Galeck Assigned To: == Project:Issue 8 drafts Issue ID: 1789 Category: Shell and Utilities Type: Error Severity: Objection Priority: normal Status: Resolved Name: Mark Galeck Organization: User Reference: Section:Volume 2, Chapter 3 Page Number:865, 2487 Line Number:80936, 29495 Final Accepted Text:see https://austingroupbugs.net/view.php?id=1789#c6621 Resolution: Accepted As Marked Fixed in Version: == Date Submitted: 2023-11-22 02:24 UTC Last Modified: 2024-01-17 17:43 UTC == Summary:if command name contains slash, it cannot be arg0 for execl() == Relationships ID Summary -- related to 0001645 execvp( ) requirements on arg0 are too ... == -- (0006626) gbrandenrobinson (reporter) - 2024-01-17 17:43 https://austingroupbugs.net/view.php?id=1789#c6626 -- "Most applications pass a filename string or a pathname string, a filename string is more generally useful, since the common usage of argv[0] is in printing diagnostics." This is a run-on sentence. I would resolve it by changing the first comma to a period and updating subsequent *roff spacing (if necessary) and capitalization afterwards. Other solutions are possible, of course. Issue History Date ModifiedUsername FieldChange == 2023-11-22 02:24 Mark_GaleckNew Issue 2023-11-22 02:24 Mark_GaleckName => Mark Galeck 2023-11-22 02:24 Mark_GaleckSection => Volume 2, Chapter 3 2023-11-22 02:24 Mark_GaleckPage Number => 865, 2487 2023-11-22 02:24 Mark_GaleckLine Number => 80936, 29495 2023-11-22 06:20 larryv Note Added: 0006579 2023-11-22 07:18 Don Cragun Note Added: 0006580 2023-11-22 07:19 Don Cragun Project 1003.1(2016/18)/Issue7+TC2 => Issue 8 drafts 2023-11-22 07:21 Don Cragun version => Draft 3 2023-11-22 09:42 Guy Harris Note Added: 0006581 2023-11-22 09:57 Guy Harris Note Added: 0006582 2023-12-11 14:58 geoffclare Note Added: 0006596 2024-01-15 16:40 nick Relationship added related to 0001645 2024-01-15 17:28 nick Note Added: 0006621 2024-01-15 17:29 nick Final Accepted Text => see https://austingroupbugs.net/view.php?id=1789#c6621 2024-01-15 17:29 nick Status New => Resolved 2024-01-15 17:29 nick Resolution Open => Accepted As Marked 2024-01-15 17:30 nick Tag Attached: tc1-2024 2024-01-15 17:31 nick Note Edited: 0006621 2024-01-17 17:43 gbrandenrobinsonNote Added: 0006626 ==
[Issue 8 drafts 0001789]: if command name contains slash, it cannot be arg0 for execl()
The following issue has been RESOLVED. == https://austingroupbugs.net/view.php?id=1789 == Reported By:Mark_Galeck Assigned To: == Project:Issue 8 drafts Issue ID: 1789 Category: Shell and Utilities Type: Error Severity: Objection Priority: normal Status: Resolved Name: Mark Galeck Organization: User Reference: Section:Volume 2, Chapter 3 Page Number:865, 2487 Line Number:80936, 29495 Final Accepted Text:see https://austingroupbugs.net/view.php?id=1789#c6621 Resolution: Accepted As Marked Fixed in Version: == Date Submitted: 2023-11-22 02:24 UTC Last Modified: 2024-01-15 17:29 UTC == Summary:if command name contains slash, it cannot be arg0 for execl() == Relationships ID Summary -- related to 0001645 execvp( ) requirements on arg0 are too ... == Issue History Date ModifiedUsername FieldChange == 2023-11-22 02:24 Mark_GaleckNew Issue 2023-11-22 02:24 Mark_GaleckName => Mark Galeck 2023-11-22 02:24 Mark_GaleckSection => Volume 2, Chapter 3 2023-11-22 02:24 Mark_GaleckPage Number => 865, 2487 2023-11-22 02:24 Mark_GaleckLine Number => 80936, 29495 2023-11-22 06:20 larryv Note Added: 0006579 2023-11-22 07:18 Don Cragun Note Added: 0006580 2023-11-22 07:19 Don Cragun Project 1003.1(2016/18)/Issue7+TC2 => Issue 8 drafts 2023-11-22 07:21 Don Cragun version => Draft 3 2023-11-22 09:42 Guy Harris Note Added: 0006581 2023-11-22 09:57 Guy Harris Note Added: 0006582 2023-12-11 14:58 geoffclare Note Added: 0006596 2024-01-15 16:40 nick Relationship added related to 0001645 2024-01-15 17:28 nick Note Added: 0006621 2024-01-15 17:29 nick Final Accepted Text => see https://austingroupbugs.net/view.php?id=1789#c6621 2024-01-15 17:29 nick Status New => Resolved 2024-01-15 17:29 nick Resolution Open => Accepted As Marked ==
[Issue 8 drafts 0001789]: if command name contains slash, it cannot be arg0 for execl()
The following issue has been set as RELATED TO issue 0001645. == https://austingroupbugs.net/view.php?id=1789 == Reported By:Mark_Galeck Assigned To: == Project:Issue 8 drafts Issue ID: 1789 Category: Shell and Utilities Type: Error Severity: Objection Priority: normal Status: New Name: Mark Galeck Organization: User Reference: Section:Volume 2, Chapter 3 Page Number:865, 2487 Line Number:80936, 29495 Final Accepted Text: == Date Submitted: 2023-11-22 02:24 UTC Last Modified: 2024-01-15 16:40 UTC == Summary:if command name contains slash, it cannot be arg0 for execl() == Relationships ID Summary -- related to 0001645 execvp( ) requirements on arg0 are too ... == Issue History Date ModifiedUsername FieldChange == 2023-11-22 02:24 Mark_GaleckNew Issue 2023-11-22 02:24 Mark_GaleckName => Mark Galeck 2023-11-22 02:24 Mark_GaleckSection => Volume 2, Chapter 3 2023-11-22 02:24 Mark_GaleckPage Number => 865, 2487 2023-11-22 02:24 Mark_GaleckLine Number => 80936, 29495 2023-11-22 06:20 larryv Note Added: 0006579 2023-11-22 07:18 Don Cragun Note Added: 0006580 2023-11-22 07:19 Don Cragun Project 1003.1(2016/18)/Issue7+TC2 => Issue 8 drafts 2023-11-22 07:21 Don Cragun version => Draft 3 2023-11-22 09:42 Guy Harris Note Added: 0006581 2023-11-22 09:57 Guy Harris Note Added: 0006582 2023-12-11 14:58 geoffclare Note Added: 0006596 2024-01-15 16:40 nick Relationship added related to 0001645 ==
[Issue 8 drafts 0001789]: if command name contains slash, it cannot be arg0 for execl()
A NOTE has been added to this issue. == https://austingroupbugs.net/view.php?id=1789 == Reported By:Mark_Galeck Assigned To: == Project:Issue 8 drafts Issue ID: 1789 Category: Shell and Utilities Type: Error Severity: Objection Priority: normal Status: New Name: Mark Galeck Organization: User Reference: Section:Volume 2, Chapter 3 Page Number:865, 2487 Line Number:80936, 29495 Final Accepted Text: == Date Submitted: 2023-11-22 02:24 UTC Last Modified: 2023-11-22 09:57 UTC == Summary:if command name contains slash, it cannot be arg0 for execl() == -- (0006582) Guy Harris (reporter) - 2023-11-22 09:57 https://austingroupbugs.net/view.php?id=1789#c6582 -- And if "the program calling execl()" is a POSIX-compliant shell, then section 2.9.1.6 Non-built-in Utility Execution of the current Draft 3 specifies that: If the command name does not contain any characters, the command name shall | 80907 be searched for using the PATH environment variable as described in XBD Chapter 8 (on | 80908 page 167): If the search is successful, the shell shall execute the utility with actions equivalent | to calling the execl() function as defined in the System Interfaces volume of POSIX.1-202x with the path argument set to the pathname resulting from the search, arg0 set to the command name, and the remaining execl() arguments set to | the command arguments (if any) and the null terminator. ... If the command name contains at least one : If the named utility exists, the shell shall execute the utility with actions equivalent | to calling the execl() function defined in the System Interfaces volume of POSIX.1-202x with the path and arg0 arguments set to the command name, and the | remaining execl() arguments set to the command arguments (if any) and the null terminator. so the filename string passed as arg0 to the exec function used by the shell is *not* a filename, it's a pathname; if you want a filename, you'll have to strip off everything up to the last path separator. Issue History Date ModifiedUsername FieldChange == 2023-11-22 02:24 Mark_GaleckNew Issue 2023-11-22 02:24 Mark_GaleckName => Mark Galeck 2023-11-22 02:24 Mark_GaleckSection => Volume 2, Chapter 3 2023-11-22 02:24 Mark_GaleckPage Number => 865, 2487 2023-11-22 02:24 Mark_GaleckLine Number => 80936, 29495 2023-11-22 06:20 larryv Note Added: 0006579 2023-11-22 07:18 Don Cragun Note Added: 0006580 2023-11-22 07:19 Don Cragun Project 1003.1(2016/18)/Issue7+TC2 => Issue 8 drafts 2023-11-22 07:21 Don Cragun version => Draft 3 2023-11-22 09:42 Guy Harris Note Added: 0006581 2023-11-22 09:57 Guy Harris Note Added: 0006582 ==
[Issue 8 drafts 0001789]: if command name contains slash, it cannot be arg0 for execl()
A NOTE has been added to this issue. == https://austingroupbugs.net/view.php?id=1789 == Reported By:Mark_Galeck Assigned To: == Project:Issue 8 drafts Issue ID: 1789 Category: Shell and Utilities Type: Error Severity: Objection Priority: normal Status: New Name: Mark Galeck Organization: User Reference: Section:Volume 2, Chapter 3 Page Number:865, 2487 Line Number:80936, 29495 Final Accepted Text: == Date Submitted: 2023-11-22 02:24 UTC Last Modified: 2023-11-22 09:42 UTC == Summary:if command name contains slash, it cannot be arg0 for execl() == -- (0006581) Guy Harris (reporter) - 2023-11-22 09:42 https://austingroupbugs.net/view.php?id=1789#c6581 -- Perhaps the paragraph containing line 29495 should :-) note that, to use IETF RFC 2119 terminology: 1. MUST This word, or the terms "REQUIRED" or "SHALL", mean that the definition is an absolute requirement of the specification. 2. MUST NOT This phrase, or the phrase "SHALL NOT", mean that the definition is an absolute prohibition of the specification. 3. SHOULD This word, or the adjective "RECOMMENDED", mean that there may exist valid reasons in particular circumstances to ignore a particular item, but the full implications must be understood and carefully weighed before choosing a different course. 4. SHOULD NOT This phrase, or the phrase "NOT RECOMMENDED" mean that there may exist valid reasons in particular circumstances when the particular behavior is acceptable or even useful, but the full implications should be understood and the case carefully weighed before implementing any behavior described with this label. 5. MAY This word, or the adjective "OPTIONAL", mean that an item is truly optional. One vendor may choose to include the item because a particular marketplace requires it or because the vendor feels that it enhances the product while another vendor may omit the same item. An implementation which does not include a particular option MUST be prepared to interoperate with another implementation which does include the option, though perhaps with reduced functionality. In the same vein an implementation which does include a particular option MUST be prepared to interoperate with another implementation which does not include the option (except, of course, for the feature the option provides.) code calling exec() SHOULD make arg0 point to point to a filename string that is associated with the process being started by one of the exec functions, but that programs MUST NOT assume that argv[0], as passed to main(), will be such a string, without an agreement between the program calling execl() and the program being executed by execl() to that effect. For what it's worth, at least on macOS Ventura, bash, ksh, dash, and zsh all provide an argv[0] that is equal to the string used to invoke the program, i.e., with a program "arg0", in /tmp, which prints out the value of argv[0]: ./arg0, when run in /tmp, prints "./arg0"; arg0, when run with a PATH that includes "." prints "arg0"; /tmp/arg0 prints "/tmp/arg0". Issue History Date ModifiedUsername FieldChange == 2023-11-22 02:24 Mark_GaleckNew Issue 2023-11-22 02:24 Mark_GaleckName => Mark Galeck 2023-11-22 02:24 Mark_GaleckSection => Volume 2, Chapter 3 2023-11-22 02:24 Mark_GaleckPage Number => 865, 2487 2023-11-22 02:24 Mark_GaleckLine Number => 80936, 29495 2023-11-22 06:20 larryv Note Added: 0006579 2023-11-22 07:18 Don Cragun Note Added: 0006580 2023-11-22 07:19 Don Cragun Project 1003.1(2016/18)/Issue7+TC2 => Issue 8 drafts 2023-11-22 07:21 Don Cragun version => Draft 3 2023-11-22 09:42 Guy Harris Note Added: 0006581
[Issue 8 drafts 0001789]: if command name contains slash, it cannot be arg0 for execl()
The following issue has been UPDATED. == https://austingroupbugs.net/view.php?id=1789 == Reported By:Mark_Galeck Assigned To: == Project:Issue 8 drafts Issue ID: 1789 Category: Shell and Utilities Type: Error Severity: Objection Priority: normal Status: New Name: Mark Galeck Organization: User Reference: Section:Volume 2, Chapter 3 Page Number:865, 2487 Line Number:80936, 29495 Final Accepted Text: == Date Submitted: 2023-11-22 02:24 UTC Last Modified: 2023-11-22 07:21 UTC == Summary:if command name contains slash, it cannot be arg0 for execl() == Issue History Date ModifiedUsername FieldChange == 2023-11-22 02:24 Mark_GaleckNew Issue 2023-11-22 02:24 Mark_GaleckName => Mark Galeck 2023-11-22 02:24 Mark_GaleckSection => Volume 2, Chapter 3 2023-11-22 02:24 Mark_GaleckPage Number => 865, 2487 2023-11-22 02:24 Mark_GaleckLine Number => 80936, 29495 2023-11-22 06:20 larryv Note Added: 0006579 2023-11-22 07:18 Don Cragun Note Added: 0006580 2023-11-22 07:19 Don Cragun Project 1003.1(2016/18)/Issue7+TC2 => Issue 8 drafts 2023-11-22 07:21 Don Cragun version => Draft 3 ==
