C system call fails from second time on

Question

I am running a program that a given points do a system call to zip some files.

The first time it runs properly, but the next time (and also the next ones) it fails with a -1 error code.

sprintf(zip, "zip -q -T -m -r %s/datsiter%d.zip %s/*%d.dat", dir, it_number, dir, it_number);
ierr = system(zip); 
printf("Output:%s %d\n ",zip, ierr);

The output is:

Output:zip -q -T -m -r results/datsiter0.zip results/*0.dat 0
Output:zip -q -T -m -r results/datsiter1.zip results/*1.dat -1
Output:zip -q -T -m -r results/datsiter2.zip results/*2.dat -1

If after the run I execute the commands manually, it works as expected.

EDIT Following kaylum suggestion I added perror("Error: "); just after system call and got the key. A nice Cannot allocate memory that I'll have to check carefully since I'm working in a cluster with a queue system.

Call `perror` to see if there is a more specific error available. — kaylum, Mar 04 '20 at 09:55
You might as well try to see what's the stdout output of `zip`, like here https://stackoverflow.com/questions/646241/c-run-a-system-command-and-get-output — Renat, Mar 04 '20 at 09:56
Nitpick: `system()` is not a system call, though it will call multiple system calls internally, none of which is called "system". — Erlkoenig, Mar 04 '20 at 09:57

score 0 · Accepted Answer · answered Mar 05 '20 at 10:25

0

Following kaylum suggestion I added perror("Error: "); just after system call and got the key. A nice Cannot allocate memory that I'll have to check carefully since I'm working in a cluster with a queue system.

answered Mar 05 '20 at 10:25

Borja Miñano

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C system call fails from second time on

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